Abstract

Two new species of Astrothelium are described from the Yungas forest in Bolivian Andes. Astrothelium chulumanense is characterised by pseudostromata concolorous with the thallus, perithecia immersed for the most part, with the upper portion elevated above the thallus and covered, except the tops, with orange pigment, apical and fused ostioles, the absence of lichexanthone (but thallus UV+ orange-yellow), clear hamathecium, 8-spored asci and amyloid, large, muriform ascospores with median septa. Astrothelium isidiatum is known only in a sterile state and produces isidia that develop in groups on areoles, but easily break off to reveal a medulla that resembles soralia. Both species, according to the two-locus phylogeny, belong to Astrothelium s.str. The production of isidia is reported from the genus Astrothelium and the family Trypetheliaceae for the first time.

Addeddate

2025-04-29 16:29:13

Bhl_virtual_titleid

210915

Bhl_virtual_volume

v.95 (2023)

Call number

10_3897_mycokeys_95_98986

Call-number

10_3897_mycokeys_95_98986

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0

Genre

article

Identifier

twonewspeciesas95kukw

Identifier-ark

ark:/13960/s22x5hk6q12

Identifier-bib

10_3897_mycokeys_95_98986

Identifier-doi

10.3897/mycokeys.95.98986

Ocr

tesseract 5.3.0-6-g76ae

Ocr_detected_lang

en

Ocr_detected_lang_conf

1.0000

Ocr_detected_script

Latin

Ocr_detected_script_conf

1.0000

Ocr_module_version

0.0.21

Ocr_parameters

-l eng

Page_number_confidence

71

Page_number_module_version

1.0.5

Page_range

83-100

Pages

18

Pdf_degraded

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Pdf_module_version

0.0.25

Possible copyright status

In copyright. Digitized with the permission of the rights holder.

Ppi

300

Source

MycoKeys 95

Year

2023

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